Remote-Eligible Senior Principal ML Systems Engineer

Work180; United Kingdom; Remote; GBP 140,000 - 210,000; Full time

Benefits offered by this job

Health & wellbeing resources

Volunteer days

Community engagement

Job summary

At Atlassian, employees can choose where they work—office, home, or a mix—providing flexibility to support family priorities and personal goals. The company can hire people in any country with a legal entity, reflecting a truly global and inclusive culture.

We value senior leaders with deep ML and distributed systems expertise who can drive cross‑org technical direction and deliver impactful outcomes across teams and projects.

Qualifications

• 10+ years of relevant experience, including designing and operating large-scale, low-latency search, recommendation, advertising, or retrieval systems.
• Deep ML systems experience, including production inference, model optimization, retrieval and ranking pipelines, evaluation, experimentation, and operations.
• Strong distributed-systems expertise across performance, concurrency, availability, multi-tenancy, capacity planning, observability, and cost efficiency.
• Strong information-retrieval and applied-ML foundations, with practical experience across lexical, semantic, vector, or hybrid retrieval.
• A track record of setting cross-organization technical direction, resolving consequential architecture choices, and delivering through multiple teams and senior technical leaders.
• Strong product and technical judgment: framing important problems, testing hypotheses, comparing alternatives, and stopping investments whose value does not justify their complexity.

Skills

10+ years experience

Deep ML systems experience

Distributed systems expertise

Information retrieval foundations

Cross-organization technical direction

Strong product and technical judgment

Job description

At Atlassian, employees can choose where they work—office, home, or a mix—providing flexibility to support family priorities and personal goals. The company can hire people in any country with a legal entity, reflecting a truly global and inclusive culture.

We value senior leaders with deep ML and distributed systems expertise who can drive cross‑org technical direction and deliver impactful outcomes across teams and projects.